Cassava Poker $8 + $0.80 No Limit Hold'em Tournament - t300/t600 Blinds - 4 players -
CO: t4144 6.91 BBs
BTN: t2896 4.83 BBs
SB: t8520 14.20 BBs
Hero (BB): t11440 19.07 BBs
Pre Flop: (t900) Hero is BB with 6 
6 
2 folds, SB raises to t1800, Hero ?
He raises 3bb and if i shove he may call cuz of good pod odds.So do i need to Coin Flip here ?
structure 45%,30%,15%,10%